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Updated: May 27, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Coherent single-cycle pulses with MV/cm field strengths from a relativistic transition radiation light source
Matthias C Hoffmann1, Sebastian Schulz, Stephan Wesch
1Max-Planck Research Group for Structural Dynamics, University of Hamburg, Center for Free Electron Laser Science, 22607 Hamburg, Germany. matthias.c.hoffmann@mpsd.cfel.de
Abstract:
Terahertz (THz) pulses with energies up to 100 μJ and corresponding electric fields up to 1 MV/cm were generated by coherent transition radiation from 500 MeV electron bunches at the free-electron laser Freie-Elektronen-Laser in Hamburg (FLASH). The pulses were characterized in the time domain by electro-optical sampling by a synchronized femtosecond laser with jitter of less than 100 fs. High THz field strengths and quality of synchronization with an optical laser will enable observation of nonlinear THz phenomena.
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